sever

From Longman Dictionary of Contemporary Englishseversev‧er /ˈsevə $ -ər/ ●○○ verb formal1[intransitive, transitive]CUT to cut through something completely, separating it into two parts, or to become cut in this way syn cut offMartin’s hand was severed in the accident.a severed rope2SEPARATE[transitive]STOP something THAT IS HAPPENING to end a relationship with someone, or a connection with something, especially because of a disagreement syn break offsever ties/relations/connections/links etc (with/between somebody)The two countries severed diplomatic relations.She had severed all contact with her ex-husband.RegisterIn everyday English, people usually say cut off rather than sever:The end of his finger had been cut off.The children's father had cut off all contact with them.→ See Verb table